package reflect;

import java.lang.reflect.Constructor;
import java.lang.reflect.Method;

public class ReflectDemo5 {
    public static void main(String[] args) throws Exception {
        Person p = new Person();
        p.say("大家好！");

        Class<?> cls = Class.forName("reflect.Person");
        Constructor<?> constructor = cls.getConstructor(String.class, int.class);
        Object obj1 = constructor.newInstance("张三", 20);
        System.out.println(obj1);
        Object obj = cls.newInstance();
        Method method = cls.getMethod("say", String.class);
        method.invoke(obj, "大家好！");

        Method method1 = cls.getMethod("say", String.class, int.class);
        method1.invoke(obj, "哈哈哈", 3);
    }
}
